Why do ABAB designs aid in making conclusions about the effects ...

[yoroshambo]

Why do ABAB designs aid in making conclusions about the effects of treatment?
 
  a) Because ABAB designs do not require a baseline assessment.
  b) Because ABAB designs show the effects of no treatment over time.
  c) Because the reversal phase and corresponding changes in behavior usually make rival hypotheses implausible.
  d) Because the reversal phase demonstrates that the behavior change will not revert to previous levels

Question 2

Why is variability in the data at baseline assessment problematic in single-case designs?
 
  a) Because performance at baseline indicates whether the treatment will be effective for the given participant.
  b) Because performance at baseline allows the investigator to generalize the findings to others in the population.
  c) Because performance at baseline is used to predict future performance and variability makes prediction difficult.
  d) Because performance at baseline is used to predict past performance and variability makes prediction difficult.

[AngeliqueG]

Answer to Question 1

Correct Answer: c

Answer to Question 2

Correct Answer: c